MCUX CLNS
MCUX Crypto Library Normal Secure
 
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mcuxClRsa_sign_pss_sha2_256_example.c File Reference

Example of using function mcuxClRsa_sign to perform the RSA signature generation with EMSA-PSS-SIGN padding scheme according to PKCS #1 v2.2. More...

#include <mcuxClToolchain.h>
#include <mcuxClSession.h>
#include <mcuxClExample_Session_Helper.h>
#include <mcuxCsslFlowProtection.h>
#include <mcuxClCore_FunctionIdentifiers.h>
#include <mcuxClRandom.h>
#include <mcuxClBuffer.h>
#include <mcuxClRsa.h>
#include <mcuxClCore_Examples.h>
#include <mcuxClEls.h>
#include <mcuxClExample_ELS_Helper.h>

Macros

#define RSA_KEY_BIT_LENGTH
 The example uses a 2048-bit key.
 
#define RSA_KEY_BYTE_LENGTH
 Converting the key-bitlength to bytelength.
 
#define RSA_MESSAGE_DIGEST_LENGTH
 The example uses a Sha2-256 digest, which is 32 bytes long.
 
#define RSA_PSS_SALT_LENGTH
 The salt length is set to 0 in this example.
 

Functions

 MCUXCLEXAMPLE_FUNCTION (mcuxClRsa_sign_pss_sha2_256_example)
 Performs a session set-up; a call to function mcuxClRsa_sign using mode mcuxClRsa_Mode_Sign_Pss_Sha2_256; a session clean-up.
 

Variables

static const ALIGNED uint8_t modulus [RSA_KEY_BYTE_LENGTH]
 Example value for public RSA modulus N.
 
static const ALIGNED uint8_t exponent [RSA_KEY_BYTE_LENGTH]
 Example value for private RSA exponent d.
 
static const ALIGNED uint8_t message [RSA_MESSAGE_DIGEST_LENGTH]
 Example value for Sha2-256 message digest.
 
static const ALIGNED uint8_t referenceSignature [RSA_KEY_BYTE_LENGTH]
 Expected signature.
 

Detailed Description

Example of using function mcuxClRsa_sign to perform the RSA signature generation with EMSA-PSS-SIGN padding scheme according to PKCS #1 v2.2.

Macro Definition Documentation

◆ RSA_KEY_BIT_LENGTH

#define RSA_KEY_BIT_LENGTH

The example uses a 2048-bit key.

◆ RSA_KEY_BYTE_LENGTH

#define RSA_KEY_BYTE_LENGTH

Converting the key-bitlength to bytelength.

◆ RSA_MESSAGE_DIGEST_LENGTH

#define RSA_MESSAGE_DIGEST_LENGTH

The example uses a Sha2-256 digest, which is 32 bytes long.

◆ RSA_PSS_SALT_LENGTH

#define RSA_PSS_SALT_LENGTH

The salt length is set to 0 in this example.

Function Documentation

◆ MCUXCLEXAMPLE_FUNCTION()

MCUXCLEXAMPLE_FUNCTION ( mcuxClRsa_sign_pss_sha2_256_example  )

Performs a session set-up; a call to function mcuxClRsa_sign using mode mcuxClRsa_Mode_Sign_Pss_Sha2_256; a session clean-up.

Return values
MCUXCLEXAMPLE_STATUS_OKThe example code completed successfully
MCUXCLEXAMPLE_STATUS_ERRORThe example code failed

Initialize ELS, Enable the ELS

Destroy Session and cleanup Session

Disable the ELS

Variable Documentation

◆ modulus

const ALIGNED uint8_t modulus[RSA_KEY_BYTE_LENGTH]
static

Example value for public RSA modulus N.

◆ exponent

const ALIGNED uint8_t exponent[RSA_KEY_BYTE_LENGTH]
static

Example value for private RSA exponent d.

◆ message

const ALIGNED uint8_t message[RSA_MESSAGE_DIGEST_LENGTH]
static

Example value for Sha2-256 message digest.

◆ referenceSignature

const ALIGNED uint8_t referenceSignature[RSA_KEY_BYTE_LENGTH]
static